code: def setUpClass(cls):
      cls.kwargs = {
          "connection_data": {
              "host": "127.0.0.1",
              "port": "9043",
              "user": "cassandra",
              "password": "",
              "keyspace": "test_data",
              "protocol_version": 4,
          }
      }
      cls.handler = CassandraHandler(
          "test_cassandra_handler", **cls.kwargs
      )
  
file_path: mindsdb/mindsdb/integrations/handlers/cassandra_handler/tests/test_cassandra_handler.py
imports: import unittest
  from mindsdb.api.executor.data_types.response_type import RESPONSE_TYPE
  from mindsdb.integrations.handlers.cassandra_handler.cassandra_handler import CassandraHandler
label_desc: Use image node_id 1 for calling the CassandraHandlerTest obj's underlying member method code with example usage: obj.setUpClass(cls) without return types